/*
 * Copyright (c) 2024 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

// FunctionDeclaration
export function greet(name: string): string {
  return `Hello, ${name}`;
}

// MethodDeclaration inside a class
class Person {
  private _age: number;
  // Constructor
  constructor(public name: string, age: number) {
    this._age = age;
  }
  // MethodDeclaration
  greet(): string {
    return `Hi, my name is ${this.name}`;
  }
  // GetAccessor
  get age(): number {
    return this._age;
  }
  // SetAccessor
  set age(age: number) {
    if (age > 0) {
      this._age = age;
    }
  }
}

// FunctionExpression assigned to a variable
export const add = function(x: number, y: number): number {
    return x + y;
};

// ArrowFunction assigned to a variable
const multiply = (x: number, y: number): number => x * y;

// Instance of class Person
const person = new Person("John Doe", 30);